Table 7 Regression analysis
Period | a (constant) | b | Conf. interval of b* | R 2 | |
|---|---|---|---|---|---|
1965-1995 | GP | 0.545 | −0.013 | −0.015/-0.010 | 0.832 |
N = 31 | Specialist | 0.544 | −0.007 | −0.008/-0.006 | 0.889 |
1965-1980 | GP | 0.465 | 0.002** | −0.007/0.003 | 0.036 |
N = 16 | Specialist | 0.509 | −0.002 | −0.004/-0.001 | 0.430 |
1981-1995 | GP | 0.578 | −0.015 | −0.017/-0.012 | 0.898 |
N = 15 | Specialist | 0.622 | −0.010 | −0.012/-0.009 | 0.941 |